| Fully Qualified Name: | Zend\Filter\Null |
| Extends: | ToNull |
Stub class for backwards compatibility.
Since PHP 7 adds "null" as a reserved keyword, we can no longer have a class named that and retain PHP 7 compatibility. The original class has been renamed to "ToNull", and this class is now an extension of it. It raises an E_USER_DEPRECATED to warn users to migrate.
| Name | Description | Defined By |
|---|---|---|
| __construct() | {@inheritdoc} | Null |
| __invoke() | Invoke filter as a command | AbstractFilter |
| filter() | Defined by Zend\Filter\FilterInterface | ToNull |
| getOptions() | Retrieve options representing object state | AbstractFilter |
| getType() | Returns defined boolean types | ToNull |
| hasPcreUnicodeSupport() | AbstractFilter | |
| setOptions() | AbstractFilter | |
| setType() | Set boolean types | ToNull |
{@inheritdoc}
| Parameter Name | Type | Description |
|---|---|---|
| $typeOrOptions |
Returns:
Invoke filter as a command
Proxies to {@link filter()}
| Parameter Name | Type | Description |
|---|---|---|
| $value | mixed |
Returns: mixed
Defined by Zend\Filter\FilterInterface
Returns null representation of $value, if value is empty and matches types that should be considered null.
| Parameter Name | Type | Description |
|---|---|---|
| $value | string |
Returns: string
Retrieve options representing object state
Returns: array
Returns defined boolean types
Returns: int
Returns: bool
| Parameter Name | Type | Description |
|---|---|---|
| $options | array|\Traversable |
Returns: self
Set boolean types
| Parameter Name | Type | Description |
|---|---|---|
| $type | int|array |
Returns: self